ProSoft Technology 5202-DFNT-MCM4 - Manual (Page 29)

MCM Protocol Configuration MCM ♦ ProLinx Gateway
Driver Manual Modbus Master/Slave
ProSoft Technology, Inc.
Page 29 of 80
October 16, 2009
3.2.3 Poll Interval
0 TO 65535
This parameter specifies the minimum interval between executions of a
continuous commands (Enable code of 1). The value is in seconds. Therefore, if
a value of 10 is entered, the command will execute no more frequently than once
every 10 seconds.
3.2.4 Reg Count
Regs: 1 to 125
Coils: 1 to 800
This parameter specifies the number of 16-bit registers or binary bits to be
transferred by the command.
ƒ Functions 5 and 6 ignore this field as they apply only to a single data point.
ƒ For functions 1, 2, and 15, this parameter sets the number of bits (inputs or
coils) to be transferred by the command.
ƒ For functions 3, 4, and 16, this parameter sets the number of registers to be
transferred by the command.
3.2.5 Swap Code
No Change
Word Swap
Word and Byte Swap
Byte Swap
This parameter defines if and how the order of bytes in data received or sent is to
be rearranged. This option exists to allow for the fact that different manufacturers
store and transmit multi-byte data in different combinations that do other
manufacturers. This parameter is helpful when dealing with floating-point or other
multi-byte values, as there is no one standard method of storing these data
types. This parameter can be set to rearrange the byte order of data received or
sent into order more useful or convenient for other applications. The following
table defines the valid Swap Code values and the effect they have on the byte-
order of the data.
Swap Code Description
None No Change is made in the byte ordering (1234 = 1234)
Swap Words The words are swapped (1234=3412)
Swap Words & Bytes The words are swapped then the bytes in each word are swapped
(1234=4321)
Swap Bytes The bytes in each word are swapped (1234=2143)